view test/CodeGen/Hexagon/ifcvt-common-kill.mir @ 128:c347d3398279 default tip

fix
author mir3636
date Wed, 06 Dec 2017 14:37:17 +0900
parents 803732b1fca8
children
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# RUN: llc -march=hexagon -run-pass if-converter -o - %s -verify-machineinstrs | FileCheck %s

# CHECK: %r26 = A2_tfr %r1
# CHECK: S2_pstorerhf_io undef %p0, undef %r0, 0, killed %r1

---
name:            foo
tracksRegLiveness: true
body: |
  bb.0:
    successors: %bb.1, %bb.2
    liveins: %r0, %r1
      J2_jumpf undef %p0, %bb.2, implicit-def %pc

  bb.1:
    successors: %bb.3
    liveins: %r1
      ; This <kill> flag should be cleared. It didn't use to be, because
      ; this instruction is treated as a duplicate of the corresponding
      ; instruction from the "false" block bb.2. Clearing of the <kill>
      ; flags was limited to the non-common part of the "true" block.
      %r26 = A2_tfr killed %r1
      J2_jump %bb.3, implicit-def %pc

  bb.2:
    successors: %bb.3
    liveins: %r1
      %r26 = A2_tfr %r1
      S2_storerh_io undef %r0, 0, killed %r1
      J2_jump %bb.3, implicit-def %pc

  bb.3:
    liveins: %r26
...